CVE-2019-11556 Cross-site scripting in n/a

Medium 6.1 Published 25 Sep 2020 Updated 4 Aug 2024

Cross-site scripting in Pagure's blame view allows attackers to execute arbitrary scripts in victim browsers, potentially leading to session hijacking.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2019-11556?

CVE-2019-11556 is a medium-severity cross-site scripting vulnerability in Opensuse Backports Sle, published on 25 Sep 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Pagure before 5.6 allows XSS via the templates/blame.html blame view.

Weakness: CWE-79

Which versions are affected by CVE-2019-11556?

It affects 3 products.

Linux distribution packages (2)

`pagure` SUSE:Package Hub 15 SP1	All versions	`5.5-bp151.2.3.1`
`pagure` openSUSE:Leap 15.1	All versions	`5.5-lp151.2.3.1`

Products include Opensuse Backports Sle, Opensuse Leap, Redhat Pagure.

How do I fix CVE-2019-11556?

Upgrade to a fixed version.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2019-11556 being exploited?

There is no known exploitation of CVE-2019-11556 in the wild and no public exploit code.

All Opensuse Backports Sle vulnerabilities

Sources

Also known as GHSA-678h-c4mf-x2hm, MGASA-2021-0206, openSUSE-SU-2020:1765-1, openSUSE-SU-2020:1810-1.